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2074 Shoemaker (1974 UA)
Classification: Mars-crossing Asteroid          SPK-ID: 2002074
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08177561456316422 4.1221e-08  
a 1.799749043947895 3.9235e-09 au
q 1.652573459819589 7.3565e-08 au
i 30.07423976195365 4.9583e-06 deg
node 207.2725313767459 5.9868e-06 deg
peri 205.5664317935323 2.2175e-05 deg
M 291.6704847334731 2.1218e-05 deg
tp 2459167.887180166251
(2020-Nov-14.38718017)
5.1896e-05 TDB
period 881.8939315580078
2.41
2.8838e-06
7.895e-09
d
yr
n .4082123565177526 1.3349e-09 deg/d
Q 1.946924628076202 4.2443e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2143  
   data-arc span      24311 days (66.56 yr)  
   first obs. used      1954-04-08  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36726  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:12:53  

Additional Information
 Earth MOID = .668718 au 
 Jupiter MOID = 3.29324 au 
 T_jup = 3.906 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0   n/a MPO473792  
diameter diameter 3.189 km 0.330 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 2.5328 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D.; Stephens, R.D.; Harris, A.W.; Pravec, P. (2009) Minor Planet Bull. 36, 176-178.]
[Warner, B.D. (2011) Minor Planet Bull. 38, 33-36.]
[Klinglesmith III, D.A.; Hendrickx, S.; Madden, K.; Montgomery, S. (2016) Minor Planet Bull. 43, 123-128.]
[Warner, B.D. (2018) Minor Planet Bull. 45, 39-45.]
geometric albedo albedo 0.491   0.191 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
SMASSII spectral type spec_B Sa   n/a Xu et al. (1995) Icarus 115, 1-35  

2074 Shoemaker (1974 UA)          Discovered 1974-Oct-17 by Helin, E. F. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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